[alsa-devel] alsa-lib changes in pcm file plugin

[Andrey Mazo]

Hi,

This short patch series contains three independent changes in pcm file plugin.
The first two of them are trivial fixes and should not cause any behavior changes and regressions.
The third one contains changes to make pcm_file.c access input/output files only when needed and thus to make its behavior more intuitive (from my point of view) (i.e., write to output file only on playback and read from input file only on capture).

The patches should apply cleanly against current HEAD (ae035b7fe5620fcaf4f5ea33ecabcf93b8e056cd).